Here is my version of an expandable tote. Finished tote is 18 3/4" H x 16" W across the top when expanded. The straps have a 7 3/4" drop when tote is expanded. When the expansion is tucked away inside, the smaller tote is 13" H x 14 3/4" W across the top. The straps have a 14 3/4" drop when used as a small tote.
Both totes narrow to 12" W at the bottom with a 2 3/4" gusset. There are instructions to create 2 small side pockets on the inside measuring 2 3/4" W x 4" to 8" deep and One large pocket on the outside measuring 13" H x 14 3/4" W (across the top) x 12" W (across the bottom).
https://www.etsy.com/listing/487960370/expandable-tote-purse-pattern-digital?ref=shop_home_active_1
mailed paper pattern Price: $18.99 at Etsy link below: https://www.etsy.com/listing/487961432/expandable-tote-purse-mailed-paper?ref=shop_home_active_1
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